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Dr Sarah Christine Sherlock

Professional biography

See http://www.open.ac.uk/personalpages/s.sherlock/index.shtml for a more detailed profile.

I hold a permanent Faculty position (Senior Research Fellow) in the Department of Earth and Environmental Sciences here at the Open University, and lead the the Ar-Ar and Noble Gas Research Group and Laboratory.

My research is argon-centric and entirely laser-based; my interests mainly lie within the realm of technique development and application, as a means to extracting information about processes or events that generally resist arrest when it comes to conventional bulk sampling methods.

My current preoccupation is to find new ways in which we can increase the spatial resolution of Ar/Ar laserprobe dating to extract new information from rocks and minerals. Through this I and colleagues are investigating the diffusion mechanisms of argon in feldpsars, understanding the behaviour of argon durinbg friction melting, the uptake of excess argon in mudrocks and their attendant strain-fringes, the timing of fluid-rock interaction through dating authigenic alkali feldspars, dating meteorite impact craters, the behaviour of argon in volcanic glasses, and most recently in basalts. All using Ar/Ar laserprobe methods.

I also foster collaborative and commercial Ar/Ar dating opportunities and welcome any enquiries. We have a long client list that includes Geological Surveys (British, Denmark & Greenland, Polish, Spanish, Turkish, Faroe Islands), oil and gas exploration (e.g. Petrobras, DougalEarth, ExonnMobil, SINDRI consortium, Statoil, Petroleum Directorate of Oman, Morton Associates, Corelab, Chemostrat, Ichron, Fugro Consulting), civil engineering (RIZZO Associates) and more than 20 university departments in Europe, Scandinavia, Australia, South Africa, India, Asia, North America, South America. See link above for more details.

Research Activity

Research groups

NameTypeParent Unit
Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)CentreFaculty of Science

 

Externally funded projects

Mantle Volatiles: Contemporary Processes, Reservoirs And Fluxes (Project Student)

RoleStart dateEnd dateFunding source
Co-investigator01/Oct/201530/Sep/2019NERC (Natural Environment Research Council)
This project is Funded studentship tied to the large NERC consortium grant titled Mantle Volatiles: Contemporary Processes, Reservoirs and Fluxes. Ginevra Chelli is studying “The role of degassing on the distribution of >60 elements during crustal processes and eruption of basaltic melts”

Publications

Argon redistribution during a metamorphic cycle: Consequences for determining cooling rates (2016-12-02)
McDonald, Christopher S.; Warren, Clare J.; Mark, Darren F.; Halton, Alison M.; Kelley, Simon P. and Sherlock, Sarah C.
Chemical Geology, 443 (pp. 182-197)
40Ar/39Ar ages and residual volatile contents in degassed subaerial and subglacial glassy volcanic rocks from Iceland (2015-05-18)
Clay, P. L.; Busemann, H.; Sherlock, S. C.; Barry, T. L.; Kelley, S. P. and McGarvie, D. W.
Chemical Geology, 403 (pp. 99-110)
Forests of the tropical eastern Andean flank during the middle pleistocene (2014-01-01)
Cárdenas, Macarena L.; Gosling, William D.; Pennington, R. Toby; Poole, Imogen; Sherlock, Sarah C. and Mothes, Patricia
Palaeogeography, Palaeoclimatology, Palaeoecology, 393 (pp. 76-89)
Observation of centimetre-scale argon diffusion in alkali feldspars: implications for 40Ar/39Ar thermochronology (2014)
Flude, Stephanie; Halton, Alison M.; Kelley, Simon P.; Sherlock, Sarah C.; Schwanethal, James and Wilkinson, Camilla M.
Geological Society, London, Special Publications, 378 (pp. 265-275)
Metamorphic rocks seek meaningful cooling rate: interpreting 40Ar/39Ar ages in an exhumed ultra-high pressure terrane (2012-12)
Warren, Clare J.; Kelley, Simon P.; Sherlock, Sarah C. and Mcdonald, Christopher S.
Lithos, 155 (pp. 30-48)
Geochronological constraints on a Permo-Triassic impact crater: U-Pb and 40Ar/39Ar results from the 40km Araguainha crater of central Brazil (2012-06-01)
Tohver, E.; Lana, C.; Cawood, P. A.; Fletcher, I. R.; Jourdan, F.; Sherlock , S.; Rasmussen, B.; Trindade, R. I. F.; Yokoyama, E.; Souza Filho, C. R. and Marangoni, Y.
Geochimica et Cosmochimica Acta, 86 (pp. 214-227)
A simple method for in situ U-Th-He dating (2012-02-15)
Vermeesch, Pieter; Sherlock, Sarah C.; Roberts, Nick M. W. and Carter, Andy
Geochimica et Cosmochimica Acta, 79 (pp. 140-147)
Using white mica 40Ar/39Ar data as a tracer for fluid flow and permeability under high-P conditions: Tauern Window, Eastern Alps (2012-01)
Warren, C. J.; Smye, A. J.; Kelley, S. P. and Sherlock, S. C.
Journal of Metamorphic Geology, 30(1) (pp. 63-80)
Cryptic microtextures and geological histories of K-rich alkali feldspars revealed by charge contrast imaging (2012)
Flude, Stephanie; Lee, Martin R.; Sherlock, Sarah C. and Kelley, Simon P.
Contributions to Mineralogy and Petrology, 163(6) (pp. 983-994)
Partitioning of excess argon between alkali feldspars and glass in a young volcanic system (2011-10-07)
Clay, P. L.; Kelley, S. P.; Sherlock, S. C. and Barry, T. L.
Chemical Geology, 289(1-2) (pp. 12-30)
Response to comment on "The response of vegetation on the Andean flank in western Amazonia to Pleistocene climate change" (2011-09)
Cárdenas, Macarena L.; Gosling, William D.; Sherlock, Sarah C.; Poole, Imogen; Pennington, R. Toby and Mothes, Patricia
Science, 333(6051) (p 1825)
New Ar-Ar ages of southern Indian kimberlites and a lamproite and their geochemical evolution (2011-08)
Osborne, Ian; Sherlock, Sarah; Anand, Mahesh and Argles, Tom
Precambrian Research, 189(1-2) (pp. 91-103)
Interpreting high-pressure phengite 40Ar/39Ar laserprobe ages: an example from Saih Hatat, NE Oman (2011-06)
Warren, C. J.; Sherlock, S. C. and Kelley, S. P.
Contributions to Mineralogy and Petrology, 161(6) (pp. 991-1009)
The response of vegetation on the Andean flank in western Amazonia to Pleistocene climate change (2011-02-25)
Cárdenas, Macarena L.; Gosling, William D.; Sherlock, Sarah C. ; Poole, Imogen; Pennington, R. Toby and Mothes, Patricia
Science, 331(6020) (pp. 1055-1058)
40Ar/39Ar dating of oil generation and migration at complex continental margins (2010)
Mark, Darren F.; Parnell, John; Kelley, Simon P.; Lee, Martin R. and Sherlock, Sarah C.
Geology, 38(1) (pp. 75-78)
The significance of the contemporaneous Logoisk impact structure (Belarus) and Afro-Arabian flood volcanism (2009)
Sherlock, Sarah C.; Kelley, Simon P.; Glazovskaya, Liudmila and Peate, Ingrid Ukstins
Journal of the Geological Society, 166(1) (pp. 5-8)
High spatial resolution 40Ar/39Ar dating of pseudotachylites: geochronological evidence for multiple phases of faulting within basement gneisses of the Outer Hebrides (2009)
Sherlock, Sarah C.; Strachan, Rob A. and Jones, Kevin A.
Journal of the Geological Society, 166(6) (pp. 1049-1059)
Empirical constraints on extrusion mechanisms from the upper margin of an exhumed high-grade orogenic core, Sutlej valley, NW India (2009)
Chambers, Jennifer; Caddick, Mark; Argles, Thomas; Horstwood, Matthew; Sherlock, Sarah; Harris, Nigel; Parrish, Randall and Ahmad, Talat
Tectonophysics, 477(1-2) (pp. 77-92)
Excess argon (40ArE) uptake during slate formation: a 40Ar/39Ar UV laserprobe study of muscovite strain-fringes from the Palaeozoic Welsh Basin, UK (2008-12-15)
Sherlock, Sarah; Zalasiewicz, Jan; Kelley, Simon P. and Evans, Jane
Chemical Geology, 257(3-4) (pp. 203-217)
A laser probe 40Ar /39Ar and INAA investigation of four Apollo granulitic breccias (2008-12)
Hudgins, Jillian A.; Spray, John G.; Kelley, Simon P.; Korotev, Randy L. and Sherlock, Sarah C.
Geochimica et Cosmochimica Acta, 72(23) (pp. 5781-5798)
New impact-melt rock from the Roter Kamm impact structure, Namibia: Further constraints on impact age, melt rock chemistry, and projectile composition (2008-07)
Hecht, Lutz; Reimold, W. Uwe; Sherlock, Sarah; Tagle, Roald; Koeberl, Christian and Schmitt, Ralf-Thomas
Meteoritics and Planetary Science, 43(7) (pp. 1201-1218)
Ar–Ar dating of authigenic K-feldspar: Quantitative modelling of radiogenic argon-loss through subgrain boundary networks (2008-06)
Mark, D. F.; Kelley, S. P.; Lee, M. R.; Parnell, J.; Sherlock, S. C. and Brown, D. J.
Geochimica et Cosmochimica Acta, 72(11) (pp. 2695-2710)
Grenville-age pseudotachylite in the Lewisian: laserprobe 40Ar/39Ar ages from the Gairloch region of Scotland (UK) (2008-01)
Sherlock, Sarah C.; Jones, Kevin A. and Park, R. Graham
Journal of the Geological Society, 165(1) (pp. 73-83)
Late Palaeozoic hydrocarbon migration through the Clair field, West of Shetland, UK Atlantic margin (2008)
Mark, Darren F.; Green, Paul F.; Parnell, John; Kelley, Simon P.; Lee, Martin R. and Sherlock, Sarah C.
Geochimica et Cosmochimica Acta, 72(10) (pp. 2510-2533)
First field evidence for southward ductile flow of Asian crust beneath southern Tibet (2007-08)
King, Jess; Harris, Nigel; Argles, Tom; Parrish, Randy; Charlier, Bruce; Sherlock, Sarah and Zhang, Hong Fei
Geology, 35(8) (pp. 727-730)
Resolution of regional fluid flow related to successive orogenic events on the Laurentian margin (2007-06)
Mark, Darren F.; Parnell, John; Kelley, Simon P. and Sherlock, Sarah C.
Geology, 35(6) (pp. 547-550)
First field evidence of southward ductile flow of Asian crust beneath southern Tibet (2007)
King, Jess; Harris, Nigel; Argles, Tom; Parrish, Randy; Charlier, Bruce; Sherlock, Sarah and Zhang, Hong Fei
Geology, 35(8) (pp. 727-730)
Cretaceous and Triassic subduction-accretion, high-pressure-low-temperature metamorphism, and continental growth in the Central Pontides, Turkey (2006-09)
Okay, A. I.; Tuysuz, O.; Satir, M.; Ozkan-Altiner, S.; Altiner, D.; Sherlock, S. and Eren, R. H.
Geological Society of America Bulletin, 118(9-10) (pp. 1247-1269)
Temperature-composition-time (T-X-t) data from authigenic K-feldspar: an integrated methodology for dating fluid flow events (2006-06)
Mark, Darren F.; Parnell, John; Kelley, Simon P. and Sherlock, Sarah C.
Journal of Geochemical Exploration, 89(1-3) (pp. 259-262)
Re-evaluating the age of the Haughton impact event (2005-12)
Sherlock, Sarah C.; Kelley, Simon P.; Parnell, John; Green, Paul; Lee, Pascal; Osinski, Gordon R. and Cockell, Charles S.
Meteoritics and Planetary Science, 40(12) (pp. 1777-1787)
A high resolution record of multiple diagenetic events: Ultraviolet laser microprobe Ar/Ar analysis of zoned K-feldspar overgrowths (2005-10-15)
Sherlock, Sarah C.; Lucks, Tim; Kelley, Simon P. and Barnicoat, Andy
Earth and Planetary Science Letters, 238(3-4) (pp. 329-341)
Dating of multistage fluid flow in sandstones (2005-09-23)
Mark, Darren F.; Parnell, John; Kelley, Simon P.; Lee, Martin; Sherlock, Sarah C. and Carr, Andrew
Science, 309(5743) (pp. 2048-2051)
Radiogenic isotope records of Quaternary glaciations: Changes in the erosional source and weathering processes (2004-10)
Reynolds, Ben C.; Sherlock, Sarah C.; Kelley, Simon P. and Burton, Kevin W.
Geology, 32(10) (pp. 861-864)
Dating fault reactivation by Ar/Ar laserprobe: an alternative view of apparently cogenetic mylonite–pseudotachylite assemblages (2004-05)
Sherlock, S.C.; Watts, L.M.; Holdsworth, R.E. and Roberts, D.
Journal of the Geological Society, 161(3) (pp. 335-338)
Laser microprobe 40Ar–39Ar analysis of pseudotachylyte and host-rocks from the Tatra Mountains, Slovakia: evidence for late Palaeogene seismic/tectonic activity (2003-12)
Kohut, Milan and Sherlock, Sarah C.
Terra Nova, 15(6) (pp. 417-424)
Chemical heterogeneities of Caledonian (?) pseudotachylites in the Eidsfjord Anorthosite, north Norway (2003-06)
Plattner, Ulrike; Markl, Gregor and Sherlock, Sarah
Contributions to Mineralogy and Petrology, 145(3) (pp. 316-338)
Precise dating of low-temperature deformation: Strain-fringe analysis by 40Ar-39Ar laser microprobe (2003-03)
Sherlock, Sarah C.; Kelley, Simon P.; Zalasiewicz, Jan A.; Schofield, David I.; Evans, Jane A.; Merriman, Richard J. and Kemp, Simon J.
Geology, 31(3) (pp. 219-222)
Fingerprinting polyorogenic detritus using the 40Ar/39Ar ultraviolet laser microprobe (2002-06)
Sherlock, Sarah C.; Jones, Kevin A. and Kelley, Simon P.
Geology, 30(6) (pp. 515-518)
Excess argon evolution in HP–LT rocks: a UVLAMP study of phengite and K-free minerals, NW Turkey (2002-02-15)
Sherlock, Sarah and Kelley, Simon
Chemical Geology, 182(2-4) (pp. 619-636)
Two-stage erosion and deposition in a continental margin setting: A 40Ar/39Ar laserprobe study of offshore detrital white micas in the Norwegian Sea (2001-09)
Sherlock, Sarah C.
Journal of the Geological Society, 158(5) (pp. 793-799)
A laser-probe 40Ar/39Ar study of pseudotachylite from the Tambach Fault Zone, Kenya: direct isotopic dating of brittle faults (2001-01)
Sherlock, S. and Hetzel, R.
Journal of Structural Geology, 23(1) (pp. 33-44)
Containers, sensors and samples to understand desert weathering (2015-03)
Schwenzer, S. P.; Barnes, J. J.; Charlier, B. L.; Grady, M. M.; Hall, C.; Melwani Daswani, M.; Morse, A.; Olsson-Francis, K.; Patel, M.; Pearson, V.; Pillinger, J. M.; Preston, L. J.; Sheridan, S.; Sherlock, S. C.; Steer, E. D.; Summers, S.; Verchovsky, S.; Dove-Jay, A. S. ; Jewell, S. and Musilova, M.
In : 46th Lunar and Planetary Science Conference (16-20 March 2015, The Woodlands, TX, USA)
Metamorphic rocks seek meaningful cooling rates: new views from muscovite 40Ar/39Ar dating (2012-06)
Warren, Clare; Kelley, Simon and Sherlock, Sarah
In : 22nd V.M. Goldschmidt Conference (24-29 June 2012, Montreal, Canada)
40Ar/39Ar systematics in an exhumed ultra-high pressure terrane: implications for the timing of exhumation (2012-04)
Warren, Clare; Kelley, Simon; Sherlock, Sarah and Mcdonald, Christopher
In : European Geosciences Union General Assembly 2012 (22-27 April 2012, Vienna, Austria)
Tracking fluid action in Little Sark Pluton (Channel Islands, UK): a UV laserprobe Ar/Ar study of excess 40Ar (2011)
Schwenzer, Susanne P.; Schwanethal, James; Tindle, Andrew G.; Kelley, Simon Peter and Sherlock, Sarah C.
In : AGU Fall Meeting (5- 9 December 2011, San Francisco, CA, USA)
Spatial evaluation of Ar-systematics in rocks from the British Channel Islands: a UV laserprobe Ar/Ar study of excess 40Ar (2010)
Schwenzer, Susanne; Sherlock, Sarah and Kelley, Simon
In : AGU Fall Meeting (13-17 Dec 2010, San Francisco, CA, USA)
Potential of short wavelength laser ablation of organic materials (2009-09)
Watson, Jonathan S.; Sestak, Stephen; Sherlock, Sarah; Greenwood, Paul F. and Fuentes, David
In : 24th International Meeting on Organic Geochemistry (6-11 September 2009, Bremen, Germany)
Is UV laser ablation a suitable tool for geochemical analysis of organic rich source materials? (2008)
Sestak, Stephen; Watson, Jonathan S.; Sherlock, Sarah; Greenwood, Paul F. and Fuentes, David
In : 15th Australian Organic Geochemistry Conference (8-12 September, Adelaide)

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